| Diagram | Fig. 7 — CARBURETOR T140E · ref 7 |
| Subsystem | fuel |
| Listed in parts books | 1979–1980 |
2928/060 Throttle slide No.3
Amal Mk II Concentric carburetor throttle slide, No.3 (Amal ref 2928/060), for the T140E/T140D-era carb setup.
This is a throttle slide for the Amal Mk II Concentric carburetor, catalog number 99-7075, listed under the Amal reference 2928/060 as slide No.3. The slide is the part that rides up and down inside the carb body when you twist the throttle, controlling how much air gets pulled through and working together with the needle to meter fuel at part-throttle openings.
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Our records show this one turning up on the T140E and T140D carburetor figures, specifically the Mk II Concentric setup, in catalog listings from 1979 to 1980. The slide number matters here because Amal issued different cutaway heights under different slide numbers to tune carburetion for different engines - this is listed as slide No.3, so if you are replacing a worn or scored slide you want to match that number, not just the carb body type.
If your bike is jetted differently or you are not sure whether the No.3 slide matches what came out of your carb, give us a call before ordering. Slides wear against the carb body over years of use and a worn one will cause an erratic idle or hesitation off the throttle, so it is a common enough part to need replacing on an older Concentric.
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